Jyoti Amge and Brahim Takioullah are calling on 50,000 participant to step before the camera for the Amazing Feet challenge -- one of the largest mass-participation records ever attempted.

The photos must be submitted before the end of the summer and Guinness doesn't want to see your new floral wedges. All participants must go barefoot.

This unlikely pair -- one with 15-inch feet, the other just 24.7 inches tall -- have their work cut out for them. So far, only 232 photos of feet have been submitted. But both are amazing in their own way.